PC is really organized (and intended compulsory) euphemism.

The trouble with any euphemism is that the new "neutral" expression is still connected with the underlying referent, and will be used by people who used the old term. Those with a negative attitude to the referent will have a negative attitude even if obediently using the new term. On the other side of the coin, those who suspect negative attitudes are held will hear and see negative attitudes in and around the new term. In time the new term is poisoned (as "colored" was, and as "black" has been, both of which were put forward as "more kindly" substitutes for expressions seen as "loaded") and a new euphemism is needed to replace the old one, and equally uselessly.

The whole thing becomes an exercise in futility.

Dave Oesterreich